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[media] av7110: potential divide by zero 

"len" comes from dvb_video_ioctl() and there is a possibility that it is
zero.  We do a divide by len later in the function so that's not ok.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Dan Carpenter 2015-11-10 20:23:53 -02:00 committed by Mauro Carvalho Chehab
parent 75d63a40a5
commit 0dac45f0e5
1 changed files with 3 additions and 0 deletions
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3
drivers/media/pci/ttpci/av7110_av.c
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@ -1045,6 +1045,9 @@ static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len
dprintk(2, "av7110:%p, \n", av7110);
if (len == 0)
return 0;
if (!(av7110->playing & RP_VIDEO)) {
if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
return -EBUSY;